3. The average price of $91.3544 consists of the following blocks of shares: 100 shares sold at $90.84, 100 at $90.88, 100 at $90.96, 100 at $90.99, 100 at $91.13, 100 at $91.26, 100 at $91.27, 200 at $91.28, 350 at $91.29, 100 at $91.30, 100 at $91.32, 100 at $91.40, 100 at $91.41, 101 at $ 91.4104, 67 at $91.42, 250 at $91.44, 100 at $91.45, 90 at $91.48, 310 at $91.49, 100 at $91.51, 300 at $91.54, 100 at $91.58, 100 at $91.66 and 100 at $91.68.

4. On January 31, 2008, the reporting person was granted restricted stock units, the vesting of which was subject to both continued service and the attainment of certain revenue and EBITDA targets for 2008. These targets were achieved, therefore 50% of the award vested on February 13, 2009, with 25% additional units scheduled to vest on each of February 15, 2010 and February 15, 2011, subject solely to continued service.

6. On March 9, 2009, the reporting person was granted restricted stock units, the vesting of which was subject to both continued service and the attainment of certain revenue and EBITDA targets for 2009. These targets were achieved to the maximum extent, therefore 50% of the award vested on 2/12/10, with 25% additional units scheduled to vest on each of February 15, 2011 and February 15, 2012, subject solely to continued service.

Remarks:

Darrin B. Short, Attorney-in-Fact

02/17/2011

** Signature of Reporting Person

Date

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person,
see
Instruction
4
(b)(v).